Q: Is a night the period of time between astronomical dusk and astronomical dawn when the sun is between 18 and 90 degrees below the horizon and the sky is totally dark? ¶
Q: Are nights shorter than days on average due to two factors? ¶
Q: Is a night not seen in the animal kingdom alone? ¶
A: Yes, plants have also evolved adaptations to cope best with the lack of sunlight during this time.
Q: Is a night due to the rotation of a celestial body about its axis? ¶
A: Yes, and creating an illusion of the sun rising and setting.
Q: Is a night often associated with danger and evil, because of the psychological connection of night's all-encompassing darkness to the fear of the unknown and darkness's obstruction of a major sensory system? ¶
A: Yes, Nighttime is naturally associated with vulnerability and danger for human physical survival.
Q: Is a night day? ¶
A: Yes, The start and end points of time for a night vary, based on factors such as season, latitude, longitude and timezone.